Vortex 193AZK-37 CAT5 Rear Aluminum Sprocket 520 37-Tooth Black

The Vortex 193AZK-37 is a CAT5 rear aluminum sprocket featuring a 520 chain pitch and 37-tooth count in a striking black anodized finish. Engineered for serious motorcycle riders who demand lightweight performance without sacrificing durability, this sprocket is 100% CNC manufactured in the U.S.A. from a specially formulated aluminum alloy per Vortex's own material specifications.

What sets the CAT5 apart is Vortex's signature anodizing process — the sprocket is anodized first, then CNC machined, resulting in vivid color on the body with bright silver highlights on the swept surfaces, mud grooves, and teeth. This process also yields superior surface hardness and wear resistance compared to conventionally finished sprockets.

Key Features:

• 520 chain pitch — 37 teeth
• Black anodized finish with contrasting silver machined highlights
• CNC machined from 7075 aluminum — lightweight yet robust
• Anodized before machining for maximum surface durability
• Patented saber tooth groove design increases sprocket longevity
• Vortex patented tooth profile for improved power delivery
• 100% CNC manufactured in the U.S.A.
• Specially formulated alloy per Vortex specifications

The Vortex CAT5 sprocket is a trusted choice among competitive and performance-oriented riders seeking a race-proven rear sprocket upgrade with a bold, two-tone appearance.